⑥ Fit back up ring (11) to gland (3). Put the backup ring in the warm water of 30~50 C . Fit O-ring (10) to gland (3). Fit bushing (4) to gland (3). 4 ⑦ ⑧ 10 11 12 3 7407ASE47 (2) (2) Assemble piston assembly Assemble piston assembly Check for scratches or rough surfaces. If found smooth with an oil stone. Coat the outer face of piston (13) with hydraulic oil. ① 13 7407ASE36 ② Fit piston seal (15) to piston Put the piston seal in the warm water of 60~100 C for more than 5 minutes. After assembling the piston seal, press its outer diameter to fit in. 15 7407ASE48 ③ ④ Fit wear ring (16) to piston (13). Fit O-ring (14) to piston (13). 16 15 14 13 7407ASE49 5-39